My sawyer has a tape that measures in tenths of a foot as well. Kind of reminds me of how aircraft measure time aloft; both tach time and hobbs time is measured in tenths of an hour.

Something that’s gonna tilt your head: 1 1/2" is 1/8th of a foot. And 3/4" is 1/16th of a foot. Common inch woodworking sizes like that aren’t weird fractions of an inch, they’re some power of two fraction of a foot.